https://www.desidime.com/discussions/removing-scaling-from-air-cooler?page=2#post_9236940
Plastic - harpic
Lohe ka - use diluted content of acid bottle (tezab ki bottle usually u will find this on hardware stores )
Plastic - harpic
Lohe ka - use diluted content of acid bottle (tezab ki bottle usually u will find this on hardware stores )
Plas ya hatora maro cooler pe. Hat jaegi